Gearing.



704,094. Patented July 8, I902. c. H. PELTON.

BEARING (Application filed Jan. 2, 1901.)

(Nu Model.)

awa /c jigs 22555.5

tends in the opposite direction.

UNITED STATES PATENT OFFICE.

CHARLES H. PELTON, SPRINGFIELD, OHIO.

GEARING.

SPECIFICATION forming part of Letters Patent No. 704,094, dated July 8,1902.

Application filed January 2, 1901. dsrial No. 41,803. (No model.)

To (all whom it may concern:

Be it known that I, CHARLES H. PELTON, a citizen of the United States,residing at Springfield, in the county of Clark and State of Ohio, haveinvented certain new and useful Improvements in Gearing, of which thefollowing is a specification, reference being had therein to theaccompanying drawings.

This invention relates to improvements in gearing, and has for itsobject to provide a change-speed gearing which shall be efficient inoperation and in which the variable-speed driving disk may be used as adriving element when rotating in either direction.

The invention also has for its object to provide means whereby the gearsmay be readily thrown into and out of engagement with each other.

To these ends the invention consists in certain novel features which Iwill now proceed to describe and will then particularly point out in theclaims.

In the accompanying drawings, Figure lis a side elevation, partly insection, of a gearing embodying my invention, the driving and drivenshafts being shown in section. Fig. 2 is a plan section of the same, andFig 3 is a detail perspective view of the fixed sleevehearing.

In the said drawings, 8 indicates a driving shaft or axle mounted in astationary sleeve or bearing-box 9. The inner end of this box isprovided with a beveled or inclined portion 16, which cooperates with acorresponding bevel or incline 17 on a bar 18, the forward end of whichis slotted to fit over and be supported on the shaft or' axle 8, uponwhich it may slide longitudinally. The bar 18 is provided with asuitable handle 20, by means of which it may be operated. At one end ofthe cam-incline on the bar 18 there is formed a projection '70, which isapproximately V-shaped, as shown, one of its inclines forming acontinuation or portion of the incline 17, while its other incline 71ex- At the opposite end of the incline on the box 9 there is formed arecess 72, corresponding to the projection 70 and having an inclinedshoulder 73, against which the incline 71 may rest under certainconditions hereinafter pointed out. The box 9 is also provided with aboss 2l,-recessed to form a step-bearing for an upwardly extending shaft22, on which is mounted to slide longitudinally thereon a pinion 23, thepinion and shaft being caused to rotate together by any suitablemeans-as, for instance, by squaring that portion of the shaft on whichthe pinion slides and providing the pinion with a similarly-shapedaperture. Upon the shaft or axle 8 there is mounted adjacent to thepinion 23 and bar 18 a driving-disk 24, having an elongated hub 25,fitting loosely on the shaft or axle, so as to be slidable thereonlongitudinally.

represents a collar secured on the shaft or axle and having acylindrical flange 27, which extends over the end of the hub 25. A rib28 on this flange engages a groove or slot 29 in the hub and causes thedrivingdisk 24: to rotate along with the shaft or axle. A spring 30,interposed between the collar 26 and disk 24, forces the disk normallytoward the pinion 23 and bar 18.

It will be observed that the spring 30 not only surrounds the shaft oraxle, but also the hub of the driving-disk, being exposed andnotinclosed, as in Letters Patent No. 588,239, granted to me August 17,1897, so that said spring is not only always accessible for inspectionor any other purpose, but also may be made of sufficient size andstrength to materially increase its efficiency and durability over theinclosed spring set forth in my said prior Letters Patent. It will beseen that when the bar 18 is moved rearward it will disengage the diskfrom the pinion and that when said bar is moved forward the spring 30will cause the disk to reengage the pinion 23, and thereby impart rotarymotion to the shaft 22. It will also be observed that when the bar 18 isdrawn back for the purpose of disengaging the disk and pinion theprojection seatsitself within the recess 72, so as to lock the bar inthis disengaging position, and thereby prevent the frictional contact ofthe rotating driving-disk from moving the bar backward, thus permittingthe gears to reengage. The bearing of the inclined shoulder 71 of theprojection upon the inclinedshoulder 73 of the recess is such, however,that a sharp forward push on the bar 18 will cause the same direction.

the projection to slip out of the recess 72, thereby permitting the diskto reengage the pinion in the manner just described.

The driving-disk 24 forms with the pinion 23 a variable-speed device, bymeans of which the speed of rotation of the shaft 22 relatively to thatof the shaft or axle 8 may be changed, as desired, within certain limit.The pinion 23, it will be noted, is provided with sphericalshaped teeth31. The driving-disk 24 is an improvement upon the disk set forth inDesign Letters Patent No. 24,368, granted to me June 4, 1895. The diskshown in my earlier patent just referred to is capable of use only inconnection with a pinion rotating in one direction, whereas my improveddisk is adapted to rotate in either direction and may therefore beemployed on either side of the pinion.

My improved gearing although capable of general use is more particularlydevised for use in connection with agricultural imple ments-such asfertilizer distributers and drills or seeders-and in machines of thischaracter the driving-disk is generally fastened to the axle, so that italways rotates in My improved drivingdisk can be placed upon the axle ateither end of a machine of this kind, with its wor"- ing face directedoutward or toward the adjacent ground-wheel, and will act as adriving-disk upon the pinion, whetherit engages the pinion while movingin one direction or while moving in the opposite direction.

My improved reversible disk herein shown is provided upon its workingface with a series of ribs 32, arranged generally in groups at rightangles to each other, as shown, and each rib has on each of its faces oredges notches or recesses 33, which, in conjunction with the oppositenotches of the adjacent ribs, form recesses with which the sphericalteeth of the pinion 23 may engage in either direction, thereby adaptingthe driving-disk to be applied to either end of the axle with itsworking face outward.

The pinion 23 is movable longitudinally on the shaft 22 and radiallywith respect to the driving-disk, so that it may be caused to en gagewith circular rows of recesses farther from or nearer to the center ofthe disk, and thereby consequently diminish or increase the speed of theshaft 22 relatively to that of the shaft or axle. This movement of thepinion is accomplished by providing its hub with a groove 34, embracedby a forked arm 35, terminating in a sleeve 36, by means of which it isconnected with an operating-rod 37, extending upward parallel with theshaft 22 and being provided with an operatinghandle 38. In order tosecure the operatingrod 37 in position after adjustment, its lower endhas fastened to it, by means of a setscrew 39, a sleeve 40, providedwith a series of teeth 41. This sleeve passes through a lug 42, formedon the box 9 and provided with an aperture 43 for the passage of thesleeve 40 and with a radial slot 44 for the passage of the teeth 41. Therod 37 is adapted to rotate within the sleeve 36, and by so turning saidrod as to bring the teeth 41 in line with the slot 44 the rod may bemoved up or down, as desired, carrying with it the pinion. Afteradjustment the rod may be locked by turning it so as to move the teethout of line with the slot and causing said teeth to engage the upper andlower sides of the lug 42.

In order to cause the forked arm to move up and down with the red, thelower end of the sleeve 36 is threaded, as indicated at 45, and there isscrewed onto said threaded end a correspondingly-threaded collar 46,provided with a wrench-grasp 47 and connected with the sleeve 40 bymeans of a pin or screw 48, which extends into agroove 49 in the upperend of the sleeve 40. This pin-and-groove connection permits the rod 37and sleeve 40 to rotate freely relatively to the sleeve 36 and at thesame time insures that the sleeve 36 and the forked arm carried therebywill move longitudinally with the rod and its lockingsleeve. Thethreaded connection between the collar 46 and sleeve 36 permits theforked arm and pinion to be adjusted relatively to the locking sleeve40, so as to insure the proper engagement of the teeth of the pinionwith the drivingdisk when the teeth of the locking-sleeve are engagedwith the lug 42.

The shaft 22 is provided at its upper end wit-h a bevel-pinion 50, whichmeshes with a corresponding bevel-gear 51 on a shaft 52, which is thedriven shaft and whose speed relatively to the driving shaft or axle 8may, be readily varied by means of the mechanism hereinbefore described.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. A driving-disk for fertilizer-distributers provided on its face witha plurality of ribs, each rib having recesses in its opposite sides, andthe recesses of the adjacent ribs being located opposite each other,whereby concentric series of laterally-defined recesses are formed,substantially as described.

2. In a fertilizer-distributer, the combina tion, with an axle, of adriving-disk mounted thereon and provided with a plurality of ribs onits working face, each rib having recesses in its opposite sides, andthe recesses of the adjacent ribs being opposite each other, wherebyconcentric series of laterally-defined recesses are formed, a shaftarranged at right angles to the axle and suitably connected with thefeeding devices, and a pinion rotating with and slidable longitudinallyon said shaft and provided with spherical teeth to engage the recessesof the driving-disk, substantially as described.

3. The combination, with a rotating axle, of a shaft at right anglesthereto provided with a pinion, a driving-disk loosely mounted on theaxle and provided with a hub having a longitudinal groove or slot, acollar fixed on the axle and having a longitudinal flange extending overthe end of the hub of the disk and provided with a rib or key to enterthe slot or groove thereof, an exposed spring surrounding the hub andbearing against the disk and collar, and means for moving the disktoward and from the collar, substantially as described.

4. In a variable-speed gear for fertilizerdistributers, &c., thecombination, with a shaft, and a pinion rotating with and slidable onsaid shaft, ofa shifting device for the pinion comprising an armengaging the pinion and provided with a sleeve, a rod passing throughsaid sleeve and adapted to rotate therein and to move the sleevelongitudinally, a second sleeve secured to the lower end of the rod andprovided with teeth, and a fixed lug having an aperture to receive saidlast-mentioned sleeve and a radial slot for the passage of the teeth,said lug being of a thickness to engage between the teeth, substantiallyas described.

5. In a variable-speed gear for fertilizerdistributers, 850., thecombination, with a driving-disk mounted to rotate with and movelongitudinally of the axle and provided with concentric series ofgear-teeth, of a shaft arranged at right angles to the axle, a pinionmounted to slide longitudinally of and rotate along with said shaft, arod provided with an arm engaging said pinion, a fixed locking-lug, andan extension of said rod provided with locking-teeth to engage thelocking-lug, the connection between said rod and its extension beingadjustable, so that the locking-points may be adjusted to correspond tothe engaging points of the pinion, substantially as described.

6. A variable-speed gear for fertilizer-distributers, &c., comprising anaxle, a drivingdisk mounted thereon and provided with concentriccircular rows of gear-teeth, a shaft at right angles to the axle andhaving a pinion mounted to rotate therewith and slidable thereon, an armengaging said pinion and provided with a sleeve threaded at its lowerend, a rod passing loosely through said sleeve and provided with alocking-sleeve at its lower end, means for engaging said locking-sleeveat predetermined intervals, and a cap rotatably mounted on saidlocking-sleeve and threaded to engage the threaded lower end of theshifting arm-sleeve, substantially as described.

7. The combination, with a rotating shaft or axle and a fixed bearingtherefor, of a driving-disk mounted to slide on and rotate with theaxle, a spring to press said disk normally toward said fixed bearing, ashaft mounted in said fixed bearing and provided with a pinion adaptedto slide thereon and rotate therewith, the fixed bearing being providedwith a cam-incline and with a separate locking-recess at the end of theincline, and a longitudinally-sliding cam-bar interposed between thefixed bearing and the driving-disk and provided with a cam-incline tocooperate with that of the bearing, and with a separate lookingprojection at the end of said incline to engage with the locking-recessof the bearing, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES II. PELTON.

WVitnesses:

IRVINE MILLER, WM. OLAUGHLIN.

